162 mr. c. tate regan on south- american [mar. 7, 



5. Crenicichla lacustris. 



Gychla lacustris Oasteln. Anim. Am, Sud, Poiss. p. 19, pi. viii. 

 fig. 3 (1855). 



Crenicichla lacustris Giiiith. Cat. Fish. iv. p. 308 (1862); Steiiid. 

 Sitzb. Ak. Wien, Ixx. 1874, p. 516; Cope, Proc. Am. Phil. Soc. 

 xxxiii. 1894, p. 102 ; Pellegr. Mem. Soc. Zool. France, xvi. 1903, 

 p. 379(1904). 



Greniciclila punctata Hens, Arch. f. ISTat. i. 1870, p. 57. 



Crenicichla polysticta Hens. t. c. p. 58. 



Depth of body 4|-5 in the length, length of head 3-3|. 

 Diameter of eye 4-5 in the length of head, length of snout 3-3|,. 

 interorbital width 41-5^. Nostril nearer to eye tha,n to extremity 

 of snout. Maxillary extending to below anterior margin of eye ; 

 depth of pra^orbital |-'^- the diameter of eye. Anterior teeth 

 forming 5 series in the upper jaw, 4 in the lower. 10 gill-rakers 

 on the lower part of anterior arch. Scales denticulated, except 

 on the head, the lower parts of thorax and abdomen and anteriorly 



above the lateral line, 80-90 23I26' 63-70 in a longitudinal series 

 below the lateral line, 5 or 6 between last dorsal spine and lateral 

 line, 3 or 4 between upper and lower lateral lines. Lateral line 

 23-26 + 13-14. Dorsal XXII 12 (XX-XXIII 12-13), the spines 

 subequal from the ninth or tenth, the last 5 the length of head. 

 Anal III 8-9 (10). Pectoral nearly | the length of head, ventral 

 nearly -f. Caudal peduncle II-I3 as long as deep. Olivaceous,, 

 with numerous small dark violet spots on upper part of head 

 and body and on the vertical fins ; sometimes a dark stripe from 

 snout through eye to exti'emity of operculum, continued as a series 

 of blotches along the middle of the side ; a dark spot, sometimes 

 ocellated, on the upper part of the base of caudal. 

 Southern and Eastern Brazil. 



1. (169 mm.) Porto Real, Prov. Rio Janeiro. M. Hardj- du Dreneuf. 



2. (88 mm.) Laguna dos Patos, Rio Grande do Sul. Dr. H. von Ihering. 



6. Crenicichla macrophthalmus. 



Crenicichla macrophthalmus Heck. Ann. Mus. Wien, ii. 1840, 

 p. 427; Giinth. Cat. Fish. iv. p. 307 (1862) ; Pellegr. Mem, Soc. 

 Zool. France, xvi. 1903, p. 379 (1904). 



Depth of body about 4| in the length, length of head 3. 

 Diameter of eye 4 in the length of head and equal to the inter- 

 orbital width. ISTostril about equidistant from eye and tip of snout. 

 Maxillary extending to below anterioi- margin of eye ; depth of 

 pr?eorbital |- the diameter of eye. Scales denticulated, except on 

 the head, the lower parts of thorax and abdomen and anteriorly 

 above the lateral line, 66-70 in a longitudinal series below the 



lateral line, ^^^ in a transverse series. Lateral line 23-25 + 1 2-1 3. 

 Dorsal XX-XXII 10-11. Anal III 7-8. Pectoral f, ventral i 

 the length of head. Caudal peduncle a little longer than deep. 

 Brownish ; a dark stripe from eye to operculum ; scales of the 



